Composition and structure of a (benzimidazole)chlorobis(ethylenediamine)cobalt salt

Abstract

I wish to make a number of corrections to the description of the composition and crystal structure of a compound previously identified as "bis(ethylenediamine) (benzimidazole)chlorocobalt-(111) perchlorate". The corrections are as follows: (1) the compound is the chloride salt, rather than the perchlorate; (2) the crystals are hydrated, with the empirical formula being approximately [Co(en)_2(Cl) (benzimidazole)] Cl_2•1.3H_2O; (3) the calculateddensityis 1.56, rather than 2.94, g/cm^3; (4) thecrystals are monoclinic, space group C2/c, rather than triclinic, P1.

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